Expired Canadian patentCanada
Insecticidal and nematicidal carbamates
CA 1110648 A · Owner: E. I. Du Pont De Nemours And Company · Inventors: Hay, James V.
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Carbamates such as dimethyl N,N-1,2-, ethanediylbisoxycarbonyl(N-methylimino)thio- (N-methylimino)carbonyloxybis-ethanimidothioate use for control of insects and nematodes.
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted October 13, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 13, 1998.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledApril 30, 1979
GrantedOctober 13, 1981
Term endedOctober 13, 1998
Patent numberCA 1110648 A
Classification (IPC)C07C381/08 +1 more
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.